My Leslies didnt have DPD powder, but rather it seemed like they had a DPD *liquid*? Is that correct?

It was still DPD #1 according to the bottle but the reagent # was different. They were using it to test customer water, and it seemed like they were following the procedure we use with Bens kit, except the first step was to use this DPD liquid. Im assuming thats why they dont sell the DPD powder. If such a liquid exists, Id wonder how/if it subs with bens kits. I hate to have to pay shipping on a little batch of DPD powder, but I will if I have to I guess.

-Chris